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gmatdriller
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Did the quantity of bacteria in an experiment increase by at least 15% from 1922 to 1937?
(1) The quantity of bacteria increased each year by the same percent each year from 1922 to 1937
(2) The quantity of bacteria increased by at most 1 percent each year from 1922 to 1937.
[spoiler](1) we could have 0.0001% or 100% each year.,,INSUFF
(2) Also either 0.00001, or 1% could be applicable...INSUFF
Combining:
I set up as follows: 100, 101, 102.. 103, 104 as minimum values each year; so yr 1937 should also give us at least 115(+xxx)...15yrs from 1922...
But using 0.0001% each yr will not yield 15%, so E.
However, y tried 1% (extreme) using Q(1.01)^14 ==> Q(1 + 0.01)^14
= 1^14 + 14C1(0.01) + 14C2 (0.01)^2 +14C3 (0.01)^3 +14C4(0.01)^4
1 + 0.14 + 0.0091 + 0.000504 +0.00000924 = 1.14961324
1.14961324 is still < 15%...this doesn't look an efficient method or am I missing something?
OA is E[/spoiler]
(1) The quantity of bacteria increased each year by the same percent each year from 1922 to 1937
(2) The quantity of bacteria increased by at most 1 percent each year from 1922 to 1937.
[spoiler](1) we could have 0.0001% or 100% each year.,,INSUFF
(2) Also either 0.00001, or 1% could be applicable...INSUFF
Combining:
I set up as follows: 100, 101, 102.. 103, 104 as minimum values each year; so yr 1937 should also give us at least 115(+xxx)...15yrs from 1922...
But using 0.0001% each yr will not yield 15%, so E.
However, y tried 1% (extreme) using Q(1.01)^14 ==> Q(1 + 0.01)^14
= 1^14 + 14C1(0.01) + 14C2 (0.01)^2 +14C3 (0.01)^3 +14C4(0.01)^4
1 + 0.14 + 0.0091 + 0.000504 +0.00000924 = 1.14961324
1.14961324 is still < 15%...this doesn't look an efficient method or am I missing something?
OA is E[/spoiler]
